3/4 rootkit infection from Windows XP client

According to foreign media reports, the latest research from anti-virus software vendor Avast shows that three-quarters of rootkit infections come from Windows XP clients, and those pirated and unpatched clients are becoming targets of cybercriminals. One is that the number of pirated Windows XP is huge, and pirated software can't get Microsoft's certification, so it can't be automatically updated. The rootkit attack is deep into the operating system, so this is the perfect weapon to steal private data.
Avast also found that the rootkit's attack target is the PC's master boot record, which is also very popular among hackers. This target accounts for 62% of all infections, while drive infections account for only 27%.
At last, Avast reminded users to update the virus database of anti-virus software in time and perform a full scan.